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US Patent: 135,084
Wrench
Patentee:
Edward A. Cooper - Lancaster, NY

USPTO Classifications:
81/125.1

Tool Categories:
wrenches : nut wrenches
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Jno. J. Bonner
Edward Wilhelm

Patent Dates:
Granted: Jan. 21, 1873

Patent Pictures:
Edward A Cooper pat. Jan 21, 1873 with photo of 464 / 2 from Jim Plantikow
USPTO pdf tiff
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Description:
The patent is for the "lips" or "flanges" which keep the open end from sliding down past a nut while it is run down a bolt. It is shown in the context of a carriage or wagon wrench.

One known example is marked with the patent date; this type of feature also appears in some "malleable implement wrenches" with part numbers.

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